Change filename in create to ASCII only

[blakeembrey]

This should resolve the issue with #27. It's the recommendation in the RFC to use ASCII only for filename: https://www.rfc-editor.org/rfc/rfc6266#appendix-D

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (2bb7da3) to head (25c2492).

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #132   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          223       227    +4     
  Branches        81        82    +1     
=========================================
+ Hits           223       227    +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Phillip9587]

LGTM